<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <link rel="stylesheet" href="css/canvas.css">
</head>
<body>
<div id="background">
  <canvas id="canvas"></canvas>
</div>
<script src="js/canvas.js"></script>
</body>
</html>